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Finding the Fourth Proportional to 105,658.06, 145,807.25 and 57,911.29

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Solution

The fourth proportional to 105,658.06, 145,807.25 and 57,911.29 is: 79,917.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,658.06 : 145,807.25 = 57,911.29 : x
  2. Step 2: Convert to fraction form
    105,658.06/145,807.25 = 57,911.29/x
  3. Step 3: Cross multiply
    105,658.06x = 145,807.25 × 57,911.29
  4. Step 4: Simplify right side
    105,658.06x = 8,443,885,938.85
  5. Step 5: Solve for x
    x = 8,443,885,938.85/105,658.06
  6. Step 6: Final answer
    x = 79,917.10

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